Regan Nichole Castellanos, DNP, APRN, CPNP-AC

Primary specialty

Critical Care Pediatric Nurse PractitionerTaxonomy code 363LP0222X

License

1241673 Issued in TX

Practice address

6411 Fannin St
Houston, TX 77030-1501

Phone

(713) 704-5437

NPI assigned

Jun 2, 2026

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other names 1

• Regan Nichole Williams Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Medicare enrollment (NPD)

Not enrolled

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1780358400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784678400000",
    "number": "1427980374",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6410 FANNIN ST STE 420",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770303007",
            "telephone_number": "713-486-5091",
            "fax_number": "713-500-0702"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6411 FANNIN ST",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301501",
            "telephone_number": "713-704-5437"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CASTELLANOS",
        "first_name": "REGAN",
        "middle_name": "NICHOLE",
        "credential": "DNP, APRN, CPNP-AC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-06-02",
        "last_updated": "2026-07-22",
        "certification_date": "2026-07-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0222X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Pediatrics, Critical Care",
            "state": "TX",
            "license": "1241673",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "REGAN",
            "last_name": "WILLIAMS",
            "middle_name": "NICHOLE",
            "credential": "DNP, APRN, CPNP-AC",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• David R Castele
• Alfredo Enrique Castellano, MD
• Javianna Vanessa Castellanos Ferrer
• Luz Castellanos, MD
• Norma Castellanos, RPH
• Orianna Paola Castellar Lugo, M.S. CCC-SLP
• Danelia Castellon, MD
• Nancy Elena Castellon, PHD, LPC
• Ricardo Castellon
• Levely Castelo, D.D.S

• Critical Care Pediatric Nurse Practitioner in Houston, TX
• Providers in Houston, TX by specialty
• Critical Care Pediatric Nurse Practitioner in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.